Rotary blower and rotary engine



M. GUTTNER ROTARY BLOWER AND ROTARY ENGINE Filed July 11, 1922 Patent July 15, 1924?.

STATES max eur'rnnn, or scmsonm, GERMANY.

ROTARY BLowEa m Romany ENGINE.

' Application filed July 11, 1922. Serial No. 574,215.

To all whom it may concern.- order to obtain a positive work of the engine 55 Be it known that I, MAX Gii'r'rNnn, a citizen of the- German Republic, residing at Schmolln, Germany, have invented certain new and useful Im rovements 'in-Rotary Blowers and Rotary E plication for patent has been filedin Germany on the 12tl'lf0f July 1921),;ofwhich the following is a specification.

Rotary blowers, gas compressors and simi'-- lar machines or rotary engines with working piston eccentrically driven in a cylindrlcal casing must be directly coupled with the driving engines or with the machine tools to be driven or they must be'adapted for high numbers of revolutions and for high pressures, if they have to fulfill the requirements of modern technics.

low numbers of revolutions and for low pressures, amongst other reasons, on account of the one-sided load to which the eccentric piston is submitted at high speed and great pressures. The consequences which result herefrom are quite evldent.

movably arranged displaced at 180 the one to the other. These eccentrics are mounted upon the driving shaft preferably by means of straight elastic bodies, for instance helical springs, thin walled tubes or the like, so that the stress on the same acts perpendicularly to the longitudinal direction. The eccentrics carry the pistons 7 and 8 which are articulatedin the casing by links 9 and 10 so that they can oscillate but not rotate. As the eccentrics 5, 6 are displaced at 180 the one with regard to the other the two istons work alternately and the centrifugal orces and working pressures which occur at high speeds compensate each other; In

ngines (for which-ap- Rotary" blowers have been used hitherto only for the two pistons 7 and 8 are separated from one another by a partition 11 which tightly fits into the casing and which is movable in axial direction. By the arrangement of an axiallymovable'lid 12 which is well adso 'justed byi'm'eans ofpressu're screws 13, 14 providedin the cover of the casing, the cas- 'ing fo r' thepiStons is separated into two absolutelv'tightjchambers15, 1,6. The packing of the 'two chambers 15, .16 is effected in such a manner that by screwing up the pressure screws 13, 14 the pressure is transferred from the movable lid 12'upon the lateral surfacesof the piston 8 and from thereupon the movable partition 11 which transmits the pressure uponthe lateralsurface of piston 7, said piston being pressedagainst the second lid 17 of the cylinder which is fixed. A perfect lateral packing of both chambers is thus ensured by one single pressure.

It is evident that, instead of the arrangement with two pistons as described,'an' arrangement can be used which comprises threeand more pistons mounted upon shaft 2 so that they are displaced the-one with regard to the other in accordance with the number of pistons used.

I claim 1. In a high speed rotary blower and en- 35 glne, a casing provided with end walls, a shaft journalled in said casing, a plurality of axially movable pistons arranged in said casing and displaced relative to one another,

extensions carried by said pistons pivotally mounted in said casing, eccentrics movable 'lon 'tudinally on said shaft and coacting wit said pistons, removable partitions between the pistons and between the latter and the-end walls of the casing, and adjustable members adapted to vary the mutual pressure exerted between the partitions, pistons and casing end wall.

2. A blower and engine as claimed in claim 1 characterized in that the adjustable MAX GUTTNER. Witnesses Lnxrmum Fnarmc, Sm'rn 

